package com.web;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CookieTool {

    public static void addCookie(HttpServletResponse response,String name,String value,int maxAge){
        Cookie cookie = new Cookie(name,value);
        cookie.setPath("/");
        cookie.setMaxAge(maxAge);
        response.addCookie(cookie);
    }

    public static String getCookieValueByName(HttpServletRequest request,String name){
        Cookie[] cookies=request.getCookies();
        for(Cookie cookie:cookies){
            if(cookie.getName().equals(name)){
                return cookie.getValue();
            }
        }
        return null;
    }
}
